Showing 5 results for Shahin
Sh Hezarkhani, F Nik Nejad, N Shahini,
Volume 8, Issue 3 (Autumn[PERSIAN] 2014)
Abstract
Abstract
Background and Objective: Onychomycosis is a fungal nail infection causing ulcers, diabetic foot and enhance nail infection. This study was designed to evaluate the prevalence of onychomycosis in type II diabetes.
Material and methods: This descriptive-analytic study was conducted on 300 diabetic patients selected randomly among those referred to Panje Azar endocrinology clinic. They were examined for peripheral vascular disease, Skin lesions, diabetic foot and Peripheral neuropathy. The Laboratory tests such as FBS, HbA1c, Direct smear and fungal culture were used.
Results: The patients with onychomycosis were 19 (6.3%) their mean age was 53.65±1.04 the youngest was 28 and the oldest 84. The male to female infection ratio was of 1.08 that was not statistically significant. There was no significant difference in regards to ethnicity, age, BMI, FBS, HbA1C. The location of the infection was 16 on feet (29.6%), and three on both hands and feet (P = 0.000)
Conclusion: The prevalence of fungal infection was less frequent than that of other studies. Given that there was no significant relationship between different demographic data and its prevalence, further studies with larger sample size are needed.
Keywords: Prevalence, Fungal Infections, Diabetes
Majid Komijani, Mohammad Taghi Kardi, Khashayar Shahin, Mahsa Yazdi,
Volume 11, Issue 5 (Sep - Oct 2017)
Abstract
ABSTRACT
Three major hepatitis B virus (HBV) antigens include HBcAg, HBeAg and HBsAg. HBeAg is the extracellular form of HBcAg, and is seen almost exclusively in people who have circulating serum HBV DNA. Presence of HBsAg in serum indicates that the individual has contracted HBV infection. Chronic hepatitis HBeAg-negative/anti-HBe–positive is known as an important form of chronic hepatitis B in the Mediterranean region. In this report, we used Real-Time PCR and ELISA for detection of HBV and HBeAg/HbsAg, respectively. In our investigation on 4743 HBV cases referred to the Mahdieh Clinical Laboratory between 2008 and 2016, we found a
53-year-old man with clinical symptoms of hepatitis and abnormal molecular and serological features. Despite the presence of clinical symptoms and high viral load (128 × 10
5 iu/ml), the patient was HBsAg-positive and HBeAg-negative. Identifying this type of HBV could indicate spread of this type of hepatitis in Isfahan, Iran.
Keywords: Hepatitis B, HbsAg, HBeAg.
Majid Komijani, Khashayar Shahin, Mohadeseh Barazandeh, Mehdi Sajadi,
Volume 12, Issue 5 (Sep-Oct 2018)
Abstract
ABSTRACT
Background and Objectives: Pseudomonas aeruginosa is an opportunistic pathogen resistant to various antibiotics. The aim of the present study was to study resistant patterns in clinical isolates of
P. aeruginosa, classify them into pandrug resistance (PDR), extensive drug resistance (XDR) and multidrug resistance (MDR) groups, and identify extended-spectrum β-lactamase (ESBL)-positive isolates using the phenotypic and genotypic methods.
Methods: This cross-sectional study was conducted on 161
P. aeruginosa isolates collected from the city of Isfahan, Iran. Antibiotic susceptibility tests were performed using 11 antimicrobial agents. ESBL-positive strains were identified using the phenotypic and genotypic methods.
Results: The highest level of antibiotic resistance was observed against ceftazidime (77.64%). None of the isolates was resistant to polymyxin B. In the phenotypic method, 64 isolates (39.75%) were found as ESLB-positive, whereas 132 isolates (81.98%) were ESBL-positive in the genotypic method. The number of ESBL-positive isolates in the genotypic method was significantly higher than in the phenotypic method. The frequency of XDR and MDR isolates was 50.93% and 27.32%, respectively. None of the isolates was PDR. The frequency of the
blaTEM gene was significantly higher than other genes (P<0.0001).
Conclusion: It was revealed that the genotypic method was much more accurate in identifying ESBL-positive strains than the phenotypic method. Therefore, use of the molecular method may increase the chance of successful treatment with antibiotics of the β-lactam family.
Keywords: Drug Resistance,
β-lactamases,
Pseudomonas aeruginosa.
Sanaz Salar Amoli , Khashayar Shahin, Sima Besharat , Amir Nader Emami Razavi , Hamidreza Joshaghani ,
Volume 13, Issue 2 (Mar-Apr 2019)
Abstract
ABSTRACT
Background and Objectives: Recently, the incidence of breast cancer has increased drastically worldwide. Therefore, the identification of novel diagnostic biomarkers is essential for improving treatment outcomes and prognosis. Estrogen receptor (ER) and progesterone receptor (PR) are routinely available in breast cancer specimens. Semi-quantitative assessment of ER and PR is important for prognosis. Even with the development of genomic tests, hormone receptor status remains the most significant predictive and prognostic biomarker. Selenium is known to protect mammary epithelial cells against oxidative DNA damage and early carcinogenetic events. Since overexpression of ER and PR is common in breast cancers, we aimed to evaluate association of tissue selenium level and ER and PR expression in breast cancer.
Methods: Sixty tissue samples (30 tumors and 30 tumor margins) were collected from patients with breast cancer. Selenium level was measured using graphite furnace atomic absorption spectroscopy and ER/PR expression was evaluated using immunohistochemistry.
Results: About 60% of the samples were positive for ER/PR expression. Mean level of tissue selenium was 209.54 µg/L in tumors and 185.04 µg/L in tumor margins that were ER/PR positive. In addition, mean selenium level was 243.39 µg/L and 168.06 µg/L in ER/PR-negative tumors and tumor margins, respectively. There was no significant association between selenium level and ER/PR expression (P>0.05).
Conclusion: There is no association between tissue Se level and ER/PR expression in breast cancer.
Keywords: Selenium, Estrogen receptor (ER), progesterone receptor (PR), breast cancer.
Ali Asghar Ayatollahi, Abolfazl Khandan Del, Ailar Jamalli, Khashayar Shahin, Ania Ahani Azari,
Volume 14, Issue 1 (Jan-Feb 2020)
Abstract
Background and objectives: Staphylococcus aureus is a frequent cause of hospital- and community-associated infections on a global scale. This organism is responsible for causing an extensive range of diseases and many of them are capable of biofilm formation for their survival. By this method, treatment of them with antibiotics become very difficult and antibiotic resistance is another rising concern.
Material and Methods: The clinical samples were collected and examined for Staphylococcus aureus by microbiological and biochemical tests. Then, the biofilm formation in Staphylococcus aureus isolates was detected by microtiter plate. Using SYBR Green Real-Time PCR, the expression of PSM was determined.
Results: A total of 60 strains of Staphylococcus aureus were isolated from clinical isolates. Of them, 47 strains (78.3%) were identified biofilm producing and the others were considered negative for biofilm formation. After real-time PCR testing to detect PSM, it was determined that 100% of the strains were positive for biofilms and PSM genes. The results of phenotypic and genotypic tests of biofilm were closely related to each other and the expression of PSM B gene was 80%. It was found that 100% of strains were biofilm producing and PSM B gene was present in 78.3% (47 strains) of them.
Conclusion: The prevalence of biofilm production in Staphylococcus aureus strains isolated from clinical samples was high, so it is highly important to monitor the prevalence of these organisms in hospitals and community as well as their antimicrobial resistance.
